CN102956348A - Elastic compression nail of transformer - Google Patents
Elastic compression nail of transformer Download PDFInfo
- Publication number
- CN102956348A CN102956348A CN2012104203468A CN201210420346A CN102956348A CN 102956348 A CN102956348 A CN 102956348A CN 2012104203468 A CN2012104203468 A CN 2012104203468A CN 201210420346 A CN201210420346 A CN 201210420346A CN 102956348 A CN102956348 A CN 102956348A
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- Prior art keywords
- transformer
- gland
- coil
- shell
- flexible member
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Abstract
The invention relates to an elastic compression nail of a transformer, and the elastic compression nail is characterized by comprising a cup-shaped shell, wherein a gland is sleeved inside the shell in a sliding way, and an inner cavity is formed inside the shell; an elastic element is arranged inside the inner cavity, one end of the elastic element pushes against the gland, and a screw is fixedly connected with the gland; and transformer oil is fulfilled inside the inner cavity, and the gland and the screw are respectively provided with a through hole for communicating the inner cavity and the exterior. The elastic compression nail is simple and reliable in structure and convenient to repair; and a coil is compressed through the compression force which is produced by compressing the elastic element by adjusting the height of the screw, the loosening of the coil caused by the long-term running of the transformer can be prevented, the coil is enabled not to change under the short-circuited electric power, the short-circuit resistance of the transformer can be guaranteed, and the transformer is safe and reliable to run.
Description
Technical field
The present invention relates to a kind of hold down gag of transformer coil, especially relate to a kind of transformer elastic pressing nail.
Background technology
Along with economic development, the smelting equipment of factory is tending towards maximizing, and the capacity of transformer is increasing, and this requirement for the transformer anti-short circuit capability is more and more higher.In the prior art, the pressure nail that is used for the compression transformer coil all is that the screw rod processing and fabricating forms, and cooperate and press washer to come coil pressing, and manpower is disposable to be tightened by relying on.In the During Process of Long-term Operation of transformer, because the contraction of vibration and insulating part, cushion block etc., press nail often to occur loosening, and effective coil pressing makes transformer coil loosening, and the transformer anti-short circuit capability descends, there is potential safety hazard, when being short-circuited, huge short-circuit electromotive force even destruction coil make the serious faults such as transformer burns.
Summary of the invention
The applicant is for above-mentioned problem, be studied improvement, a kind of transformer elastic pressing nail is provided, simple and reliable for structure, effectively reduce and press the loosening phenomenon of nail, avoid transformer coil in During Process of Long-term Operation, to occur loosening, guarantee that coil is unchanged under short-circuit electromotive force, guarantee transformer Short Circuit withstand performance, transformer is moved safely and smoothly.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of transformer elastic pressing nail comprises cup-shaped shell, and gland slides in the described shell and forms in the enclosure inner chamber; Be provided with flexible member in the described inner chamber, an end of described flexible member is against on the described gland, and screw rod is fixedly connected with described gland; Described inner chamber is full of transformer oil, and described gland and screw rod are provided with the through hole that is communicated with described inner chamber and outside.
Further: the bottom of described shell is supported the pressure washer is housed.
Described flexible member is butterfly spring.
Described flexible member is Compress Spring.
The outer end of described screw rod is provided with square toes.
Technique effect of the present invention is:
A kind of transformer elastic pressing nail disclosed by the invention, simple and reliable for structure, easy to maintenance, the thrust coil pressing that produces by adjusting screw(rod) high compression flexible member, prevent the transformer long-time running and make coil loosening, guarantee that coil is unchanged under short-circuit electromotive force, guarantee transformer Short Circuit withstand performance, transformer is moved safely and smoothly.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the present invention includes cup-shaped shell 3, gland 2 slides in the shell 3 and forms in the enclosure inner chamber 301, be provided with flexible member 4 in the inner chamber 301, flexible member 4 can be butterfly spring or Compress Spring, and in the present embodiment, flexible member 4 is butterfly spring.One end of flexible member 4 is against on the gland 2, and screw rod 1 is fixedly connected with gland 2, and the outer end of screw rod 1 is provided with square toes 101, and square toes 101 are used for the instrument adjusting screw(rod)s 1 such as spanner.Be full of transformer oil in the inner chamber 301, gland 2 and screw rod 1 are provided with the through hole 6 of communication with cavity 301 and outside, and transformer oil can make inner chamber 301 interior without gas, and pressure strengthens.In the present embodiment, the bottom of shell 3 is supported to be equipped with and is pressed washer 5, presses washer 5 to make and bears the pressure area increase.
In use, pressure washer 5 of the present invention is placed on the trim ring of transformer body, and shell 3 is pressed in the groove of washer 5, press oncomelania bar 1 that screw thread is arranged, stubborn mistake is welded in the nut on the apparatus for fixing transformer, produces a thrust between transformer body and folder, thus coil pressing.In shell 3, fill with transformer oil, turn screw rod 1 with spanner and rotate, drive gland 2 downward, make flexible member 4 produce precommpression, and reach the specified compression height, can and press washer 5 to load certain thrust at coil by shell 3.Because the elasticity of flexible member 4, in the During Process of Long-term Operation of transformer, owing to the contraction of vibration and insulating part, cushion block etc. produces the slit, remedied by flexible member 4 elongation and remain a thrust at coil, and it is loosening transformer coil can not occur, guarantee the anti-short circuit capability of transformer coil, effect safe, fixing, noise reduction is played in the operation of transformer coil.
Claims (5)
1. transformer elastic pressing nail is characterized in that: comprise cup-shaped shell, gland slides in the described shell and forms in the enclosure inner chamber; Be provided with flexible member in the described inner chamber, an end of described flexible member is against on the described gland, and screw rod is fixedly connected with described gland; Described inner chamber is full of transformer oil, and described gland and screw rod are provided with the through hole that is communicated with described inner chamber and outside.
2. according to transformer elastic pressing nail claimed in claim 1, it is characterized in that: the bottom of described shell is supported the pressure washer is housed.
3. according to transformer elastic pressing nail claimed in claim 1, it is characterized in that: described flexible member is butterfly spring.
4. according to transformer elastic pressing nail claimed in claim 1, it is characterized in that: described flexible member is Compress Spring.
5. according to transformer elastic pressing nail claimed in claim 1, it is characterized in that: the outer end of described screw rod is provided with square toes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104203468A CN102956348A (en) | 2012-10-29 | 2012-10-29 | Elastic compression nail of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104203468A CN102956348A (en) | 2012-10-29 | 2012-10-29 | Elastic compression nail of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102956348A true CN102956348A (en) | 2013-03-06 |
Family
ID=47765043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104203468A Pending CN102956348A (en) | 2012-10-29 | 2012-10-29 | Elastic compression nail of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102956348A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377005A (en) * | 2014-11-28 | 2015-02-25 | 苏州市吴中区大陆电子设备厂 | Pressing device |
| CN104377000A (en) * | 2014-11-28 | 2015-02-25 | 苏州市吴中区大陆电子设备厂 | Short circuit prevention high-voltage transformer winding |
| CN106763093A (en) * | 2016-12-09 | 2017-05-31 | 徐超 | One kind crosses oil draining bolt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU905903A1 (en) * | 1980-05-23 | 1982-02-15 | Специальное Проектно-Конструкторское Технологическое Бюро По Трансформаторам | Device for axial bracing of transformer windings |
| JP2004207330A (en) * | 2002-12-24 | 2004-07-22 | Hitachi Ltd | Wiring tightening structure of static induction electric instrument |
| CN201278299Y (en) * | 2008-09-16 | 2009-07-22 | 卧龙电气集团股份有限公司 | Body pressing device of transformer |
| CN201984942U (en) * | 2011-01-30 | 2011-09-21 | 张家港市沙洲特种变压器制造有限公司 | Transformer compressing device |
| CN202084379U (en) * | 2011-05-13 | 2011-12-21 | 上海沪光变压器有限公司 | Elastic pressing nail of transformer |
| CN202930175U (en) * | 2012-10-29 | 2013-05-08 | 无锡市联达电器有限公司 | Transformer elastic pressing nail |
-
2012
- 2012-10-29 CN CN2012104203468A patent/CN102956348A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU905903A1 (en) * | 1980-05-23 | 1982-02-15 | Специальное Проектно-Конструкторское Технологическое Бюро По Трансформаторам | Device for axial bracing of transformer windings |
| JP2004207330A (en) * | 2002-12-24 | 2004-07-22 | Hitachi Ltd | Wiring tightening structure of static induction electric instrument |
| CN201278299Y (en) * | 2008-09-16 | 2009-07-22 | 卧龙电气集团股份有限公司 | Body pressing device of transformer |
| CN201984942U (en) * | 2011-01-30 | 2011-09-21 | 张家港市沙洲特种变压器制造有限公司 | Transformer compressing device |
| CN202084379U (en) * | 2011-05-13 | 2011-12-21 | 上海沪光变压器有限公司 | Elastic pressing nail of transformer |
| CN202930175U (en) * | 2012-10-29 | 2013-05-08 | 无锡市联达电器有限公司 | Transformer elastic pressing nail |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377005A (en) * | 2014-11-28 | 2015-02-25 | 苏州市吴中区大陆电子设备厂 | Pressing device |
| CN104377000A (en) * | 2014-11-28 | 2015-02-25 | 苏州市吴中区大陆电子设备厂 | Short circuit prevention high-voltage transformer winding |
| CN106763093A (en) * | 2016-12-09 | 2017-05-31 | 徐超 | One kind crosses oil draining bolt |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |